555135040320 has 224 divisors, whose sum is σ = 2048490086400. Its totient is φ = 124737275904.

The previous prime is 555135040309. The next prime is 555135040337. The reversal of 555135040320 is 23040531555.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 303600 + ... + 1096559.

Almost surely, 2^555135040320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555135040320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1024245043200).

555135040320 is an abundant number, since it is smaller than the sum of its proper divisors (1493355046080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

555135040320 is a wasteful number, since it uses less digits than its factorization.

555135040320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400245 (or 1400235 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

Adding to 555135040320 its reverse (23040531555), we get a palindrome (578175571875).

The spelling of 555135040320 in words is "five hundred fifty-five billion, one hundred thirty-five million, forty thousand, three hundred twenty".